Cooling system for a machine

ABSTRACT

A mining machine is provided. The machine includes a frame and an engine mounted on the frame. The machine also includes a heat exchanger and an aftertreatment system mounted on the frame. The machine further includes a cooling system disposed between the heat exchanger and the aftertreatment system. The cooling system includes a shroud member and a plurality of fans mounted on the shroud member. Each of the plurality of fans is adapted to provide a flow of air across the heat exchanger and around at least a portion of the aftertreatment system. The shroud member is split into a plurality of sections and each of the plurality of sections includes at least one of the plurality of fans therein.

TECHNICAL FIELD

The present disclosure relates to a cooling system for a machine. Moreparticularly, the present disclosure relates to the cooling system for aheat exchanger and an aftertreatment system associated with the machine.

BACKGROUND

An internal combustion engine generally employs an aftertreatment systemin order to treat exhaust gas generated by the engine prior to releaseinto the atmosphere. The aftertreatment system may include a number ofcomponents that may be required to be maintained within an operatingtemperature range in order to achieve optimum performance and limitpremature deterioration thereof. In the engine, or a machine employingthe engine, operating on or above ground or water surface, theaftertreatment system may be typically cooled by surrounding air due toheat transfer and natural convection.

However, in a hot environment, such as in underground miningapplications or enclosed spaces, forced ventilation may be employed inorder to achieve required heat transfer rates and to maintain thecomponents of the aftertreatment system under the operating temperaturerange. In some situations, a secondary heat exchanger mounted remotelywith respect to the engine or the machine may be oriented or positionedin a manner such that the secondary heat exchanger may provide forcedcooling to the components of the aftertreatment system. Such anarrangement of the secondary heat exchanger may employ one or morehydraulically driven fans which may suffer from several disadvantages.

The remotely mounted secondary heat exchanger of conventional designssuffers from several disadvantages. Known remote mounted secondary heatexchangers and/or the hydraulically driven fan may add extra complexityto the system, in turn, resulting in increased system cost, increasedmaintenance cost and effort, increased labor cost, and so on. Also, suchsecondary heat exchanger may be cooled using a single fan, which, if itfails, may limit operation of the aftertreatment system and/or theengine and increase a risk of overheating the components of theaftertreatment system, and so on. Also, in some situations, such knownsystems may be less than ideal during an automatic shutdown of theengine due to overheating, because the forced cooling of the secondaryheat exchanger may be stopped. Hence, there is a need for an improvedcooling system for such machines/applications.

WIPO Patent Application Number 2015174149 describes a hydraulic shovelhaving an engine compartment. The engine compartment includes an engine,a cooling fan, a hydraulic pump, and an exhaust gas aftertreatmentdevice provided above the hydraulic pump. Also, the engine compartmentincludes a tilt-up floor that covers over the engine and the exhaust gasaftertreatment device, and a side cover that covers a side of thehydraulic pump and the exhaust gas aftertreatment device. A horizontalflow passage that guides cooling air toward the hydraulic pump isprovided between the tilt-up floor the engine/the exhaust gasaftertreatment device. A vertical flow passage that passes through theexhaust gas aftertreatment device and then follows the side cover andheads below the vehicle body is further provided. An air shielding platethat shields the vertical flow passage is provided above the hydraulicpump.

SUMMARY OF THE DISCLOSURE

In an aspect of the present disclosure, a mining machine is provided.The machine includes a frame and an engine mounted on the frame. Themachine also includes a heat exchanger and an aftertreatment systemmounted on the frame. The machine further includes a cooling systemdisposed between the heat exchanger and the aftertreatment system. Thecooling system includes a shroud member and a plurality of fans mountedon the shroud member. Each of the plurality of fans is adapted toprovide a flow of air across the heat exchanger and around at least aportion of the aftertreatment system. The shroud member is split into aplurality of sections and each of the plurality of sections includes atleast one of the plurality of fans therein.

In another aspect of the present disclosure, a cooling system for a heatexchanger and an aftertreatment system associated with a machine isprovided. The aftertreatment system is spaced from the heat exchanger.The cooling system includes a shroud member provided between the heatexchanger and the aftertreatment system. The cooling system alsoincludes a plurality of fans mounted on the shroud member. Each of theplurality of fans is adapted to provide a flow of air across the heatexchanger and around at least a portion of the aftertreatment system.The shroud member is split into a plurality of sections and each of theplurality of sections includes at least one of the plurality of fanstherein.

In yet another aspect of the present disclosure, a method for cooling aheat exchanger and an aftertreatment system associated with a machine isprovided. The heat exchanger is spaced from the aftertreatment system.The method includes providing a plurality of fans between the heatexchanger and the aftertreatment system. The plurality of fans isarranged within a shroud member having a plurality of sections. Themethod also includes positioning at least one of the plurality of fansin each of the sections such that each of the plurality of sectionsinclude at least one of the plurality of fans therein. The methodfurther includes providing a flow of air across the heat exchanger andat least a portion of the aftertreatment system using at least one ofthe plurality of sections.

Other features and aspects of this disclosure will be apparent from thefollowing description and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an exemplary machine, according to oneembodiment of the present disclosure;

FIG. 2 is a perspective view of a portion of the machine of FIG. 1 witha cooling system installed therein, according to one embodiment of thepresent disclosure;

FIG. 3 is a perspective of the cooling system of FIG. 2, according toone embodiment of the present disclosure;

FIG. 4 is another perspective of the cooling system of FIG. 2, accordingto one embodiment of the present disclosure; and

FIG. 5 is a flowchart illustrating a method of working of the coolingsystem of FIG. 2, according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Wherever possible, the same reference numbers will be used throughoutthe drawings to refer to the same or the like parts. Referring to FIG.1, an exemplary machine 100 is illustrated. More specifically, themachine 100 is an underground mining loader. The machine 100 may beadapted to perform mining activities, such as loading, hauling, anddumping of material from one location to another. In other embodiments,the machine 100 may be any other machine, such as a wheel loader, amotor grader, a truck, a tractor, a dozer, an excavator, and so on.Also, the machine 100 may be related to an industry including, but notlimited to, transportation, agriculture, construction, manufacturing,mining, forestry, waste management, material handling, marine, aviation,and aerospace.

The machine 100 includes a frame 102. The frame 102 is adapted tosupport various components of the machine 100 thereon. The frame 102includes a first portion 104 and a second portion 106. The first portion104 is pivotably coupled to the second portion 106 via an articulatingjoint 108. The machine 100 includes an enclosure 110 mounted on thefirst portion 104 of the frame 102. The enclosure 110 is adapted tohouse a power source (not shown) therein mounted on the frame 102. Thepower source may be any power source known in the art, such as aninternal combustion engine powered by any fuel known in the art, such asdiesel, gasoline, natural gas, and/or a combination thereof; a battery,a motor, and/or a combination thereof, and so on. The power source isadapted to provide motive power to the machine 100.

The machine 100 also includes an operator cabin 112 mounted on the firstportion 104 of the frame 102. The operator cabin 112 is adapted to housevarious controls (not shown) of the machine 100 including, but notlimited to, a steering wheel, levers, pedals, joysticks, buttons, audiovideo devices, an operator seat, and an operator console. The controlsare configured to operate and control the machine 100. The machine 100also includes wheels 114 mounted to the first portion 104 and the secondportion 106 of the frame 102 via axles 116. The wheels 114 are adaptedto support and provide mobility to the machine 100 on ground.

The machine 100 includes a linkage assembly 118 mounted on the secondportion 106 of the frame 102. The linkage assembly 118 includes an arm120 movably coupled to the second portion 106 of the frame 102. Thelinkage assembly 118 also includes an implement 122, such as a bucket,movably coupled to the arm 120. In other embodiments, the implement 122may include any other implement known in the art, based on applicationrequirements. The linkage assembly 118 also includes one or morehydraulic cylinders (not shown) adapted to provide movement to the arm120 and/or the implement 122.

The linkage assembly 118 is adapted to perform the activities, such asloading, hauling and dumping of the material from one location toanother, based on application requirements. Additionally, the machine100 may include other components and systems (not shown), such as anengine control system, a transmission system, a drive control system, asafety system, and so on, without limiting the scope of the disclosure.

Referring to FIG. 2, the machine 100 also includes a heat exchanger 202provided within the enclosure 110. The heat exchanger 202 is mounted onthe first portion 104 of the frame 102. In the illustrated embodiment,the heat exchanger 202 is a transmission fluid cooler associated withthe transmission system of the machine 100. In other embodiments, theheat exchanger 202 may be any other fluid cooler associated with themachine 100, such as an engine oil cooler, a lubricant fluid cooler, acooling fluid cooler, a refrigerant cooler, a hydraulic fluid cooler,and so on. Also, the heat exchanger 202 may be any air to fluid heatexchanger known in the art including, but not limited to, a radiator, acondenser, among others.

The machine 100 further includes an aftertreatment system 204 providedwithin the enclosure 110. In the illustrated FIG. 2, a portion of theenclosure 110 is omitted for purpose of explanation and visual clarityof an arrangement of the heat exchanger 202 and the aftertreatmentsystem 204 within the enclosure 110. The aftertreatment system 204 ismounted on the first portion 104 of the frame 102. Also, theaftertreatment system 204 is disposed spaced apart with respect to theheat exchanger 202. The aftertreatment system 204 is adapted to receiveand treat exhaust gas generated by the engine prior to release into theenvironment. The aftertreatment system 204 may include one or morecomponents (not shown) provided in fluid communication with one another,such as a Diesel Oxidation Catalyst (DOC) unit, a Diesel Exhaust Fluid(DEF) dosing unit, a Diesel Particulate Filter (DPF) unit, a SelectiveCatalytic Reduction (SCR) unit, an Ammonia Oxidation Catalyst (AOC)unit, one or more conduits, and so on, based on applicationrequirements.

Referring to FIGS. 2, 3 and 4, the machine 100 also includes a coolingsystem 206 provided within the enclosure 110. More specifically, in theillustrated embodiment, the cooling system 206 is removably coupled tothe heat exchanger 202. In other embodiments, the cooling system 206 maybe removably mounted on the first portion 104 of the frame 102. Also,the cooling system 206 is disposed between the heat exchanger 202 andthe aftertreatment system 204. The cooling system 206 is adapted toprovide a flow of air, as shown by arrows 208, across the heat exchanger202 and around at least a portion of the aftertreatment system 204.

The flow of air provides heat transfer and, thus, cooling of the heatexchanger 202 and the one or more components of the aftertreatmentsystem 204. In some embodiments, the portion of the enclosure 110 may bedisposed at an angle (not shown) with respect to a longitudinal axisX-X′ associated with the aftertreatment system 204. In such a situation,the flow of air may be convergently directed over one or moretemperature sensitive components associated with the aftertreatmentsystem 204 including, but not limited to, sensors, electricalconnections, electrical lines, and electronic circuitry, in order toprovide forced cooling thereof.

The cooling system 206 includes a shroud member 302 (shown in FIG. 3).In the illustrated embodiment, the shroud member 302 includes asubstantially rectangular configuration. In other embodiments, theshroud member 302 may include any other configuration, such as circular,trapezoidal, and so on, based on application requirements. The shroudmember 302 includes a base plate 304. The base plate 304 defines a firstside 306 and a second side 308 thereof. The first side 306 is disposedopposing the second side 308.

The shroud member 302 also includes a plurality of edges 310 extendingaway from the base plate 304. The plurality of edges 310 includes fouredges, such as a first edge 312, a second edge 314, a third edge 316,and a fourth edge 318. Each of the plurality of edges 310 extend awayfrom the base plate 304 on the first side 306. Each of the plurality ofedges 310 is adapted to couple the shroud member 302 with respect to theheat exchanger 202. The shroud member 302 may be coupled with respect tothe heat exchanger 202 via the plurality of edges 310 using a number offasteners 320, such as bolts, screws, clamps, and so on. In otherembodiments, the shroud member 302 may be removably mounted directly onthe first portion 104 of the frame 102.

The shroud member 302 is disposed adjacent with respect to the heatexchanger 202 in a manner such that a plane of the heat exchanger 202 isparallel with respect to a plane of the shroud member 302. Also, theshroud member 302 is disposed adjacent with respect to theaftertreatment system 204 in a manner such that the longitudinal axisX-X′ associated with the aftertreatment system 204 is perpendicular withrespect to the plane of the shroud member 302. It should be noted thatan orientation of the shroud member 302 with respect to the heatexchanger 202 and/or the aftertreatment system 204 described herein ismerely exemplary and may vary based on application requirements.

The shroud member 302 may be manufactured using any material, such as ametal, a polymer, and/or a combination thereof Also, the shroud member302 may be manufactured using any method, such as casting, molding,fabrication, and so on. In some embodiments, the shroud member 302 maybe integrally manufactured with respect to the heat exchanger 202forming a single piece component along with the heat exchanger 202.

The cooling system 206 also includes a plurality of fans 322 mounted onthe base plate 304 of the shroud member 302. In the illustratedembodiment, the plurality of fans 322 includes four fans, such as afirst fan 324, a second fan 326, a third fan 328, and a fourth fan 330.Each of the plurality of fans 322 is disposed adjacent to one another.In other embodiments, the plurality of fans 322 may include any numberof fans disposed adjacent to one another in any arrangement orconfiguration, based on application requirements. Also, each of theplurality of fans 322 is provided on the second side 308 of the baseplate 304.

In other embodiments, each of the plurality of fans 322 may be providedon the first side 306 of the base plate 304, based on applicationrequirements. In yet other embodiments, one or more of the plurality offans 322 may be provided on the first side 306 of the base plate 304 andremaining of the plurality of fans 322 may be provided on the secondside 308 of the base plate 304, based on application requirements. Eachof the plurality of fans 322 is electrically operated using anelectrical power source (not shown), such as an external electric powersupply, external batteries, an alternator or batteries associated withthe machine 100, and so on. Also, each of the plurality of fans 322 isindependently operated with respect to one another.

Each of the plurality of fans 322 is adapted to provide the flow of air,as shown by the arrows 208, across the heat exchanger 202 and around atleast the portion of the aftertreatment system 204. Accordingly, thebase plate 304 may include a plurality of cutouts 402 (shown in FIG. 4)in order to allow passage of the flow of air across the base plate 304.In the illustrated embodiment, the plurality of cutouts 402 includesfour cutouts, such as a first cutout 404, a second cutout 406, a thirdcutout 408, and a fourth cutout 410. Each of the first cutout 404, thesecond cutout 406, the third cutout 408, and the fourth cutout 410 isassociated with each of the first fan 324, the second fan 326, the thirdfan 328, and the fourth fan 330, respectively. In other embodiments, theplurality of cutouts 402 may include any number of cutouts based on thenumber of the plurality of fans 322.

In the illustrated embodiment, based on a rotation and/or an orientationof each of the plurality of fans 322 on the shroud member 302, the flowof air is directed across the heat exchanger 202, the first side 306 ofthe base plate 304, the second side 308 of the base plate 304, andfurther around the one or more components of the aftertreatment system204. More specifically, the flow of air is directed substantially alongthe longitudinal axis X-X′ in a manner such that the heat exchanger 202is disposed upstream of the aftertreatment system 204 with respect tothe direction of the flow of air.

In other embodiments, based on the rotation and/or the orientation ofeach of the plurality of fans 322 on the shroud member 302, the flow ofair may be directed around the one or more components of theaftertreatment system 204, the second side 308 of the base plate 304,the first side 306 of the base plate 304, and further across the heatexchanger 202. More specifically, in such a situation, the flow of airmay be directed substantially along the longitudinal axis X-X′ in amanner such that the heat exchanger 202 may be disposed downstream ofthe aftertreatment system 204 with respect to the direction of the flowof air.

The shroud member 302 also includes a splitting member 412 (shown inFIG. 4) provided thereon. The splitting member 412 is disposed on thefirst side 306 of the base plate 304. Also, the splitting member 412extends between the first edge 312 and the third edge 316. In otherembodiments, the splitting member 412 may extend between any edges orcorners, or locations on the shroud member 302, such as the second edge314 and the fourth edge 318, diagonally opposite corners, and so on. Thesplitting member 412 is adapted to split the shroud member 302 into aplurality of sections 414.

In the illustrated embodiment, the plurality of sections 414 includestwo sections, such as a first section 416 and a second section 418. Thefirst section 416 is disposed adjacent with respect to the secondsection 418. Each of the first section 416 and the second section 418includes at least one fan of the plurality of fans 322. In theillustrated embodiment, the first section 416 includes the first fan 324and the second fan 326 of the plurality of fans 322 therein disposedvertically adjacent with respect to one another. The second section 418includes the third fan 328 and the fourth fan 330 of the plurality offans 322 therein disposed vertically adjacent with respect to oneanother.

In other embodiments, based on an orientation and/or location of thesplitting member 412 on the shroud member 302, the first section 416 andthe second section 418 may include any combination of the plurality offans 322 therein. For example, when the splitting member 412 may extendbetween the second edge 314 and the fourth edge 318 of the shroud member302, the first section 416 may include the first fan 324 and the fourthfan 330 disposed horizontally adjacent with respect to one anothertherein, whereas the second section 418 may include the second fan 326and the fourth fan 330 disposed horizontally adjacent with respect toone another therein, and so on.

In some embodiments, the first section 416 may include one or moreadditional fans therein based on the number of the plurality of fans322. The one or more additional fans may be disposed vertically orhorizontally adjacent with respect to any of the plurality of fans 322provided therein. Also, in some embodiments, the second section 418 mayinclude one or more additional fans therein based on the number of theplurality of fans 322. The one or more additional fans may be disposedvertically or horizontally adjacent with respect to any of the pluralityof fans 322 provided therein.

Also, in some embodiments, the shroud member 302 may include a pluralityof splitting members (not shown) provided thereon based on the number ofthe plurality of fans 322. In such a situation, each of the plurality ofsplitting members may define additional sections (not shown) of theplurality of sections 414, such as a third section, a fourth section,and so on based on a number of the plurality of splitting members. Eachadditional section of the plurality of sections 414 may include one ormore fans of the plurality of fans 322, as described with reference tothe first section 416 and the second section 418, based on applicationrequirements.

INDUSTRIAL APPLICABILITY

The present disclosure relates to a method 500 for cooling the heatexchanger 202 and the aftertreatment system 204 associated with themachine 100. Referring to FIG. 5, a flowchart of the method 500 isillustrated. At step 502, the plurality of fans 322 is provided betweenthe heat exchanger 202 and the aftertreatment system 204. Morespecifically, the plurality of fans 322 is arranged within the shroudmember 302. The shroud member 302 includes the plurality of sections 414provided by the splitting member 412. In the illustrated embodiment, theshroud member 302 includes a single splitting member 412 in order toprovide two sections, such as the first section 416 and the secondsection 418. In other embodiments, the shroud member 302 may includemultiple splitting members in order to provide multiple sections, suchas the third section, the fourth section, and so on.

At step 504, at least one of the plurality of fans 322 is positioned ineach of the sections, such that each of the plurality of sections 414include at least one of the plurality of fans 322 therein. Morespecifically, in the illustrated embodiment, the first fan 324 and thesecond fan 326 is positioned in the first section 416. Also, the thirdfan 328 and the fourth fan 330 is positioned in the second section 418.In other embodiments, one or more of the first section 416 and thesecond section 418 may include a single fan or multiple fans positionedtherein, based on application requirements. In yet other embodiments,one or more of the multiple sections may include a single fan ormultiple fans positioned therein, based on application requirements.

At step 506, the flow of air, as shown by arrows 208, is provided acrossthe heat exchanger 202 and at least the portion of the aftertreatmentsystem 204 using at least one of the plurality of sections 414. Morespecifically, the flow of air may be provided using at least one of thefans positioned in at least one of the plurality of sections 414. Forexample, in one embodiment, any one or both of the first fan 324 and thesecond fan 326 may be operated in order to provide the flow of air usingthe first section 416. In another embodiment, additionally oroptionally, any one or both of the third fan 328 and the fourth fan 330may be operated in order to provide the flow of air using the secondsection 418.

Also, in the illustrated embodiment, the plurality of fans 322 ispositioned downstream of the heat exchanger 202 and upstream of theaftertreatment system 204 with respect to the direction of the flow ofair. More specifically, the shroud member 302 and, thus, each of theplurality of fans 322 are positioned in a manner such that the flow ofair is directed across the heat exchanger 202, through the shroud member302, and further around the one or more components of the aftertreatmentsystem 204 along the longitudinal axis X-X′.

Alternatively, in another embodiment, the plurality of fans 322 may bepositioned upstream of the heat exchanger 202 and downstream of theaftertreatment system 204 with respect to the direction of the flow ofair. In such a situation, the direction of the flow of air may bereversed. More specifically, the shroud member 302 and, thus, each ofthe plurality of fans 322 may be positioned in a manner such that theflow of air may be directed around the one or more components of theaftertreatment system 204 along the longitudinal axis X-X′, through theshroud member 302, and further across the heat exchanger 202.

Each of the plurality of fans 322 may be electrically and independentlyoperated with respect to one another. As such, the cooling system 206may continue to function in situations when the engine and/or themachine 100 may breakdown or shutdown due to an operational malfunctionthereof. Also, in a situation when one or more of the plurality of fans322 may breakdown or malfunction, remaining one or more of the pluralityof fans 322 may continue to be operated and provide cooling to the heatexchanger 202 and/or the one or more components of the aftertreatmentsystem 204, in turn, limiting thermal damage thereof, reducingmaintenance/repair/replacement cost, and so on.

The cooling system 206 provides a simple, efficient, and cost-effectivemethod of cooling the heat exchanger 202 and the one or more componentsof the aftertreatment system 204 simultaneously. Also, the coolingsystem 206 includes a simple design using commonly employed components,such as the plurality of fans 322, the electrical power source, and soon, in turn, reducing system cost, system complexity, extensive systemredesign, and so on. As such, the plurality of fans 322 may prove costeffective and less complex in relation to using a single or multiplehydraulic fans and related hydraulic system. The cooling system 206 maybe retrofitted in any machine and/or engine with little or nomodification to the existing system.

While aspects of the present disclosure have been particularly shown anddescribed with reference to the embodiments above, it will be understoodby those skilled in the art that various additional embodiments may becontemplated by the modification of the disclosed machines, systems andmethods without departing from the spirit and scope of the disclosure.Such embodiments should be understood to fall within the scope of thepresent disclosure as determined based upon the claims and anyequivalents thereof.

What is claimed is:
 1. A mining machine comprising: a frame; an enginemounted on the frame; a heat exchanger mounted on the frame; anaftertreatment system mounted on the frame; and a cooling systemdisposed between the heat exchanger and the aftertreatment system, thecooling system including: a shroud member; and a plurality of fansmounted on the shroud member, each of the plurality of fans adapted toprovide a flow of air across the heat exchanger and around at least aportion of the aftertreatment system, wherein the shroud member is splitinto a plurality of sections and each of the plurality of sectionsincludes at least one of the plurality of fans therein.
 2. The miningmachine of claim 1, wherein the shroud member further includes asplitting member provided thereon, the splitting member adapted to splitthe shroud member into the plurality of sections.
 3. The mining machineof claim 1, wherein the plurality of sections further includes a firstsection and a second section, the second section disposed adjacent tothe first section.
 4. The mining machine of claim 3, wherein each of thefirst section and the second section includes a first fan and a secondfan, the second fan disposed adjacent to the first fan.
 5. The miningmachine of claim 1, wherein the heat exchanger is disposed upstream ofthe aftertreatment system with respect to a direction of the flow ofair.
 6. The mining machine of claim 1, wherein the heat exchanger isdisposed downstream of the aftertreatment system with respect to adirection of the flow of air.
 7. The mining machine of claim 1, whereinat least one of the plurality of fans is electrically operated.
 8. Themining machine of claim 1, wherein the shroud member is mounted on theheat exchanger.
 9. The mining machine of claim 1, wherein the heatexchanger is at least one of a radiator and a condenser.
 10. A coolingsystem for a heat exchanger and an aftertreatment system associated witha machine, the aftertreatment system spaced from the heat exchanger, thecooling system comprising: a shroud member provided between the heatexchanger and the aftertreatment system; and a plurality of fans mountedon the shroud member, each of the plurality of fans adapted to provide aflow of air across the heat exchanger and around at least a portion ofthe aftertreatment system, wherein the shroud member is split into aplurality of sections and each of the plurality of sections includes atleast one of the plurality of fans therein.
 11. The cooling system ofclaim 10, wherein the shroud member further includes a splitting memberprovided thereon, the splitting member adapted to split the shroudmember into the plurality of sections.
 12. The cooling system of claim10, wherein the plurality of sections further includes a first sectionand a second section, the second section disposed adjacent to the firstsection.
 13. The cooling system of claim 12, wherein each of the firstsection and the second section includes a first fan and a second fan,the second fan disposed adjacent to the first fan.
 14. The coolingsystem of claim 10, wherein the heat exchanger is disposed upstream ofthe aftertreatment system with respect to a direction of the flow ofair.
 15. The cooling system of claim 10, wherein the heat exchanger isdisposed downstream of the aftertreatment system with respect to adirection of the flow of air.
 16. The cooling system of claim 10,wherein at least one of the plurality of fans is electrically operated.17. The cooling system of claim 10, wherein the shroud member is mountedon the heat exchanger.
 18. A method for cooling a heat exchanger and anaftertreatment system associated with a machine, the heat exchangerspaced from the aftertreatment system, the method comprising: providinga plurality of fans between the heat exchanger and the aftertreatmentsystem, the plurality of fans arranged within a shroud member having aplurality of sections; positioning at least one of the plurality of fansin each of the sections such that each of the plurality of sectionsinclude at least one of the plurality of fans therein; and providing aflow of air across the heat exchanger and at least a portion of theaftertreatment system using at least one of the plurality of sections.19. The method of claim 18, wherein providing the plurality of fansfurther includes positioning the plurality of fans upstream of the heatexchanger and downstream of the aftertreatment system with respect to adirection of the flow of air.
 20. The method of claim 18, whereinproviding the plurality of fans further includes positioning theplurality of fans downstream of the heat exchanger and upstream of theaftertreatment system with respect to a direction of the flow of air.